Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!bbn!bbn.com!jdhill
From: jdhill@bbn.com (Jack D. Hill)
Newsgroups: comp.sys.mac.hardware
Subject: Re: someone air-check me on this, please (adding RAM to SE)
Message-ID: <50723@bbn.COM>
Date: 10 Jan 90 20:46:37 GMT
References: <1989Dec24.204916.442@NCoast.ORG>
Sender: news@bbn.COM
Reply-To: jdhill@BBN.COM (Jack D. Hill)
Organization: Bolt Beranek and Newman Inc., Cambridge MA
Lines: 17

In article <1989Dec24.204916.442@NCoast.ORG> allbery@NCoast.ORG (Brandon S. Allbery) writes:
>Having finally bitten the bullet and purchased 4MB RAM for my lowly Mac SE, I
>...
>SE) marked resistors.  Reasoning from logic, it would appear that one cuts the
>resistor marked "256K" to install 1MB SIMMs, and cuts the resistor marked
>"1ROW" if both SIMM banks are occupied.  (This resistor is shown in the Tech
>Note but is not present in my Mac, which would make sense because it came with
>4 256K SIMMs.)

You are correct. Cut out the resistor marked "256K". It should be left in
only when ALL the SIMMs installed are of the 256K variety. And for anyone who
is interested, if you want to upgrade to 2.5 Meg, cut the resistor and swap 1
Meg SIMMs for the 256K SIMMs in sockets marked "SIMM 1" and "SIMM 2" (leaving
in the 2 - 256K SIMMs in sockets 3 & 4). This goes for both the SE and the
PLUS; despite the fact that the SIMM sockets are positioned differently.

Jack